Home / 122,575.68-169,149.78-68,131.26

Finding the Fourth Proportional to 122,575.68, 169,149.78 and 68,131.26

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Solution

The fourth proportional to 122,575.68, 169,149.78 and 68,131.26 is: 94,018.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,575.68 : 169,149.78 = 68,131.26 : x
  2. Step 2: Convert to fraction form
    122,575.68/169,149.78 = 68,131.26/x
  3. Step 3: Cross multiply
    122,575.68x = 169,149.78 × 68,131.26
  4. Step 4: Simplify right side
    122,575.68x = 11,524,387,640.12
  5. Step 5: Solve for x
    x = 11,524,387,640.12/122,575.68
  6. Step 6: Final answer
    x = 94,018.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.